Optimal L2 approximation of images in nonorthogonal multiresolution bases

  • Authors:

  • Pierre Moulin

  • Affiliations:

  • Bell Comminications Research, Morristown, NJ

  • Venue:
  • ICASSP'93 Proceedings of the 1993 IEEE international conference on Acoustics, speech, and signal processing: image and multidimensional signal processing - Volume V
  • Year:
  • 1993

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Abstract

In this paper, we present a fast optimization algorithm for L2 approximation in 2D, separable, nonorthogonal multiresolution bases and discuss its application to image coding. The algorithm is applied to a multiresolution bilinear spline basis and produces approximations that have two attractive features: less ringing artifacts and faster reconstruction than in commonly used multiresolution bases.